XML Component Vulnerability in Oracle MySQL Server and MySQL Cluster
CVE-2026-101794

6.5MEDIUM

Key Information:

Vendor

Oracle
Status
Mysql Server
Mysql Cluster
Vendor
CVE Published:
20 October 2026

What is CVE-2026-101794?

A vulnerability exists in the XML component of Oracle's MySQL Server and MySQL Cluster products, affecting multiple versions. An attacker with low privileges and network access can exploit this vulnerability, leading to unauthorized operational disruptions such as hangs or repeatable crashes of the MySQL services. The risk is increased for those using the affected versions, as successful exploits could result in a denial-of-service situation, impacting both availability and stability of the databases.

Affected Version(s)

MySQL Cluster 8.0.0-8.0.49

MySQL Cluster 8.4.0-8.4.12

MySQL Cluster 9.7.0-9.7.3

References

https://www.oracle.com/security-alerts/cpuoct2026.html
vendor-advisory

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.